this part need a lot of more work !

GravityField/raytrace.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-POVOPT=" -q9 +a -W1024 -H768 +WT2 -d -v "
+POVOPT=" -q9 +a -W1280 -H1024 +WT2 -d -v "
 SOURCE="vision.pov"
 TMPF="/dev/shm/gravfield.png"
 
@@ -29,10 +29,12 @@ convert	${TMPF}				\
 	-fill Orange			\
 	-annotate +15+22  "$timestamp"	\
 	-annotate +15+48  "$texte"	\
-	-pointsize 16			\
+	-pointsize 14			\
 	-gravity south-west		\
 	-annotate +15+9 "tTh & Konrad"	\
 	${outfile}
+
+sleep 3
 }
 
 #		---------------------------------------
@@ -51,5 +53,6 @@ ffmpeg  -nostdin					\
 	-metadata artist='---{ tTh and Konrad }---'	\
 	-metadata title="Experiment on Gravity Field"	\
 	-c:v libx264 -pix_fmt yuv420p			\
-	bar.mp4
+ 	-preset veryslow				\
+	gravity-field.mp4